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By Australasian Institute of Mining and Metallurgy

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Extra info for Geology of Australian and Papua New Guinean mineral deposits (Monograph Australasian Institute of Mining and Metallurgy)

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Geology of Australian and Papua New Guinean Mineral Deposits RESOURCES General Based on current knowledge, Australia is undoubtedly one of the world’s richest nations in terms of mineral resources. However, this may change in the future as countries with a range of under-explored geological environments come under the scrutiny of the international exploration industry in the face of growing world demand for minerals. Some of the reasons for Australia’s large stocks of known mineral resources include a large land mass, a stable political system and a history of sustained modern mineral exploration since 1950.

INTERNATIONAL ISSUES AND TRENDS International factors which have set the context for the industry over the decade include regional changes in demand for minerals, world commodity price trends and variations in currency exchange rates. Other factors which may have affected international investors’ attitudes include political and economic developments in the old Soviet block, China, India, Africa, Asia–Pacific and South and Central America. In addition, we have had the social and political impact of the United Nations sponsored report on sustainable development and the International Convention on climate changes related to global warming and the greenhouse effect.

The discovery of the Cannington* deposit has established a benchmark for large tonnage and stratiform Proterozoic silverrich lead-zinc deposits associated with magnetite in the eastern region. Similarly, discovery of the Proterozoic stratabound Eloise, Osborne*, Ernest Henry* and Starra-Selwyn-Mount Elliott* copper-gold deposits associated with magnetite, and the lower grade Greenmount* copper-gold deposit provide evidence of the impressive mineral fecundity of the eastern region. The western part of the Carpentaria region, north from Mount Isa, is remarkable for the crop of shale-hosted stratiform lead-zinc-silver deposits discovered in the decade.

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